Recently, I posted this problem in the regular forum. However, I still have no answer for this life threatening problem. Click on the link to that post for photos & prior info: https://www.backyardchickens.com/t/...acked-enlarged-eggs-need-advice#post_18153283 I have read all the articles I could on this subject, but have found no situation just like this one. This chicken has been given the best of care, with the best of feed (Nutrena Naturewise Feather Fixer.) She has plenty of space & has never been sick, so things like Infectious diseases seems to be out as a cause. My other 6 hens have no laying problems at all. When not egg bound, she appears very healthy and energetic. About 10 days ago, she was severely stopped up to the point that she could not poop at all. We took her to a regular Vet., who was able to remedy a short term problem, but no long term situation. X- rays revealed that she had a broken egg inside her. X rays also showed that she had plenty of oyster shell in her system, so that shouldn't be the problem. Since the Vet visit, she has laid 1 egg, with some deformity, and 2 rubber eggs in the poop box. We had another episode to where she became severely stopped up to the point she could not poop & we were able to get her unclogged with the warm soak method. What is different about this problem is that, for 4 months this chicken laid nothing but great eggs, & then started laying misshapen & soft shell eggs. I suspect her shell gland somehow has become defective, but it seems unlikely to me that she would just all of a sudden start laying bad eggs, with no apparent sickness. I would greatly appreciate any ideas that would help resolve this problem.